audiopreview is a command-line tool that plays
previews of many audio file types (Ogg, MP3, etc.),
video file types (AVI, MPEG, Real, etc.), and Internet
streams. It can also be used as a regular command-line media file player (i.e. play the files entirely like yauap or mpc123 would).

Autojump is a tool that acts as a complement to cd: it makes navigating your filesystem a lot faster. It works by automagically maintaining a database of the directories you use the most from the command line, and allows you to jump back and forth between them, by typing just a few letters of the name of the directory you want to jump to. It works for Linux, Mac, and Cygwin under Windows.

BNM is a build system that uses Maven pom.xml files and implements replacements for the core Maven system and its most important plugins. BNM is a proof that Maven could run much faster. This version is able to build itself and might also fit other projects.

Bixtep is a command line application for organizing notes in a flexible and customizable way in the Bash shell. Its uses span from quick note taking to managing excerpts, sources, and any other type of textual content. All data is stored in an XML file.

CLOPS generates a Java command-line parser and documentation, given a description of command-line options in a custom language. The user can explicitly express dependencies between the individual options such as exclusion or overrides.

Cdarts is a low level implementation of a computer darts player. It can be used as an opponent against a human in the game, or it can be used as a simulator for fun. It currently supports only two different game types (301 and 501), but can be extended to support more games. It supports three different levels: beginner, hobbyist, and professional. Each level tries to simulate a human at that level as well as possible.

Centipede is a simple framework for writing command line application in Java. It uses classpath scanning and the Spring framework to automatically discover classes that fit a certain pattern to automatically expose classes as command line applications.

ChiMeRA is a configuration management tool designed around three basic concepts. The first is a framework for managing servers, allowing for command execution and file transfer over SSH. The second is a repository for managing files that enables change tracking, archiving, and management of various user definable configuration files across multiple servers through a standard revision control tool. The third concept is an aesthetic principle of simplicity, giving administrators straightforward interfaces to manage complicated environments.

Chnorm is a simple command line utility for setting the owner, group, and the mode of given files and directories on a per file/per directory basis, recursively. It is especially useful if you often copy files with brain-dead permissions from filesystems not supporting the Unix permission scheme. It detects executables based on their contents and sets their permissions accordingly.